Little Killers

These predators prove that when it comes to hunting prey, size doesn't always matter. Meet the World's Deadliest: Little Killers -- miniscule menaces with the ability to take down prey several times their own size. A fierce 10-inch-long weasel can kill a rabbit 10 times its size; 2-foot-tall Asiatic wild dogs team up to take down 2-ton water buffalo; and a golf ball-sized blue-ringed octopus dominates prey with one of the deadliest neurotoxins on the planet.